Glass shade



(No Model.)

W. vH. BRUNT. GLASS SHADE.

NoI 281,609. "i y Patented July 17, 1888.

N. Pneus. Phnwuxhugwher'. wmingu. 0.o

UNITED STATI-:s

PATENT' @Finca WILLIAM H. RRUNT, or BALDWIN, AssIGNoR 'ro voIcfI, WARD aco., oF

PITTSRURG, PENNSYLVANIA.

GLASS -si-fADE.

SPECIFICATION formingpart of Letters Patent No. 281,609, dated July 17,1883.

l Application med May 28,1883. (No model.)

To all whom, t may concern.-

Be it known that I, WILLIAM H. BRUNT, a citizen of the United States,residing at Baldwin township, (Pittsburg P. 0.,) county of Allegheny,State of Pennsylvania, have invented or discovered a new and' usefulImprovement in Glass Shades, and I do herebydeclare the following to bea full, clear, concise, and exact, description thereof, reference beinghad to the accompanying drawings, making a part of thisv specication, inwhich-like letters indicating, likeparts- ,Y n

Figure lis a perspective View of my improved glass shade, and Fig. 2 isa vertical sectional view of the same.

My invention relates to certain improvements in glass shades for lamps,gas-jets, and

similar lights; and in general terms it consists of a shade having arounded body portion, a iiat top or upper lreiiecting-surface, and acen- `tral chimney or draft -tube, as hereinafter more fully describedand claimed. u

In the drawings, a represents the body portion of my improved shade,which is of general rounded form, approximating, by prefer ence, theshape of the central zone or segment of a sphere. The lower edge of thisbody portion is, however, contracted or drawn in, as at a', and is angedoutward at the rim a2, forming thereby a base for support upon the usual.or any suitable shade-holder. Over the upper part of the body is' aflat or nearly liat cover or top, b, merging at the center into anupwardly extending draft-tube or chimney, c. This flat or horizontal topb may be made of white or other opaque glass, or may be painted orotherwise coated to prevent passage therethrough of light. Iprefer tosecure this result and thereby adapt it for use as a reflectving-surfacebyetching, grinding, or otherwise roughening either its inner or outersurface, or, by preference, Yboth its inner and outer surfaces. This maybe done by any `of the methods ordinarily practiced in the art. Lightradiated upon this flat or horizontal top from a burner below will bereflected downward-at varying angles, the greater portion passingthrough the clear glass of the body a, and thus be effective in lightingthe space below the level of thereflecting-surface. But one reflectionis required in doing this, and consequently less light will pass.through thereiiector to the space above or be otherwise wasted thanoccurs where two or more reec- 'tions at nearly the same angle arerequired to direct the light downward. This multiplicity.

of reflections is characteristic of flaring or coneshapedreflecting-surfaces, such as have ordinarily been formed on the upperpart of glass shades. By making a fiat or nearly fiat reflecting-top, asdescribed and shown, I secure a greater percentage and better diffusionof light than heretofore in the space below the shade, where light isordinarily most desired and useful.

In describing the body portion a as of rounded form, I wish to includethe various'` suitable and well-known forms of body, and such body mayalso be ornamented in the usual manner and to any desired extent. Also,the tube c kmay be etched or roughened, as illustrated, or` it may bemade of opaque glass or of clear glass, as may be desired, withreference to securing an ornamental appearance or for other reasons.

I claim herein as my inventionl. A glass shade for lamps and similaruses, having a flat or nearly fiat top, roughened or made opaque to forma reflecting-surface, substantially as set forth.

2. A glass shade having a rounded body, a, and a iiat or nearly flatcover or top, Z1, substantially as set forth.

3. A glass shade having a rounded body, a, of clear glass, a fiat ornearly flat top, b, of roughened or opaque glass, and a central tube, c,extending from such fiat top, substantially as and for the purposes setforth.

In testimony whereof I have hereunto set my hand.

WILLIAM H. BRUNT. Witnesses: y

R. `W. WHI'rrLRsRY,

C. L. PARKER.

